unreal-engine-skills

In the author's own words, from each skill's SKILL.md — showing the first 30 of 31 files.

• ue-actor-component-architecture

  Use when writing or debugging AActor and UActorComponent C++: constructor vs BeginPlay, PostInitializeComponents, EndPlay cleanup, SpawnActor/SpawnActorDeferred/FinishSpawning, CreateDefaultSubobject, NewObject + RegisterComponent, SetupAttachment/AttachToComponent, tick groups, UChildActorComponent, UINTERFACE, actor pooling. Also use when the user mentions 'BeginPlay', 'Tick', 'SpawnActor', 'Cr…

  skills/ue-actor-component-architecture/SKILL.md on GitHub (opens in a new tab)

• ue-ai-navigation

  Use when writing Unreal Engine C++ AI — AI controllers, behavior tree nodes, blackboards, AI perception, navmesh pathfinding, EQS queries or Smart Objects. Also use when the user mentions 'AAIController', 'UBTTaskNode', 'ExecuteTask', 'FinishLatentTask', 'UBlackboardComponent', 'FBlackboardKeySelector', 'UAIPerceptionComponent', 'FAIStimulus', 'UAISenseConfig_Sight', 'MoveTo', 'UNavigationSystemV…

  skills/ue-ai-navigation/SKILL.md on GitHub (opens in a new tab)

• ue-animation-system

  Use when writing or debugging Unreal Engine animation C++: AnimInstance subclasses, thread-safe update, FAnimInstanceProxy, montage playback and delegates, anim notifies, animation curves, blend spaces, anim state machines, linked anim layers, root motion. Also use when the user mentions 'UAnimInstance', 'NativeUpdateAnimation', 'NativeThreadSafeUpdateAnimation', 'Montage_Play', 'OnMontageEnded',…

  skills/ue-animation-system/SKILL.md on GitHub (opens in a new tab)

• ue-async-threading

  Use when offloading work off the game thread, dispatching results back to it, running data-parallel loops, or scheduling timers and tickers in UE C++. Also use when the user mentions 'UE::Tasks::Launch', 'FPipe', 'FTaskEvent', 'AsyncTask', 'Async()', 'TFuture', 'TPromise', 'ParallelFor', 'FRunnable', 'FAsyncTask', 'FCriticalSection', 'FRWLock', 'UE::FMutex', 'TMpscQueue', 'IsInGameThread', 'FTSTi…

  skills/ue-async-threading/SKILL.md on GitHub (opens in a new tab)

• ue-audio-system

  Use when playing, mixing or debugging sound in Unreal Engine — one-shot SFX, looping ambience, music, dialogue or procedural audio. Also use when the user mentions 'UAudioComponent', 'PlaySoundAtLocation', 'SpawnSoundAttached', 'SoundCue', 'MetaSound', 'UMetaSoundSource', 'SetFloatParameter', 'sound attenuation', 'spatialization', 'occlusion', 'sound concurrency', 'submix', 'audio bus', 'sound mi…

  skills/ue-audio-system/SKILL.md on GitHub (opens in a new tab)

• ue-blueprint-cpp-interop

  Use when exposing C++ to Blueprint or calling Blueprint from C++: UFUNCTION(BlueprintCallable), BlueprintPure, BlueprintImplementableEvent, BlueprintNativeEvent, _Implementation, UBlueprintFunctionLibrary, WorldContext, DefaultToSelf, ExpandEnumAsExecs, DeterminesOutputType, latent nodes, FPendingLatentAction, FLatentActionInfo, UBlueprintAsyncActionBase, BlueprintAssignable, UINTERFACE, Execute_…

  skills/ue-blueprint-cpp-interop/SKILL.md on GitHub (opens in a new tab)

• ue-character-movement

  Use when writing or debugging UCharacterMovementComponent code: custom movement modes, floor detection, jumping, crouching, root motion, moving platforms, or client-side movement prediction. Also use when the user mentions 'CharacterMovementComponent', 'CMC', 'PhysCustom', 'PhysWalking', 'MOVE_Custom', 'FSavedMove_Character', 'GetCompressedFlags', 'FCharacterNetworkMoveData', 'MovementBase', 'Lau…

  skills/ue-character-movement/SKILL.md on GitHub (opens in a new tab)

• ue-cpp-foundations

  Use when writing Unreal Engine C++ that touches the reflection system or core types: UCLASS, UPROPERTY, UFUNCTION, USTRUCT, UENUM, GENERATED_BODY, TObjectPtr, TWeakObjectPtr, TSharedPtr, FGCObject, TArray, TMap, TSet, TOptional, TVariant, DECLARE_DYNAMIC_MULTICAST_DELEGATE, AddDynamic, FName, FString, FText, UGameInstanceSubsystem, UWorldSubsystem, GetDefault, TNotNull. Also use when the user men…

  skills/ue-cpp-foundations/SKILL.md on GitHub (opens in a new tab)

• ue-data-assets-tables

  Use when modelling designer-authored game data in C++ and loading it: data assets, data tables, curve tables, soft references and asset streaming. Also use when the user mentions 'UDataAsset', 'UPrimaryDataAsset', 'UDataTable', 'FTableRowBase', 'FindRow', 'FDataTableRowHandle', 'TSoftObjectPtr', 'TSoftClassPtr', 'FSoftObjectPath', 'UAssetManager', 'LoadPrimaryAsset', 'FStreamableManager', 'Reques…

  skills/ue-data-assets-tables/SKILL.md on GitHub (opens in a new tab)

• ue-editor-tools

  Use when extending the Unreal Editor from C++ with detail customizations, editor utility widgets, menus, editor modes, asset definitions or editor subsystems. Also use when the user mentions 'IDetailCustomization', 'IPropertyTypeCustomization', 'CustomizeDetails', 'RegisterCustomClassLayout', 'IDetailLayoutBuilder', 'AddCustomRow', 'IPropertyHandle', 'UToolMenus', 'ExtendMenu', 'FToolMenuEntry',…

  skills/ue-editor-tools/SKILL.md on GitHub (opens in a new tab)

• ue-game-features

  Use when building, activating or debugging Game Feature plugins and modular gameplay. Also use when the user mentions 'GameFeatureAction', 'UGameFeatureData', 'GameFeaturesSubsystem', 'LoadAndActivateGameFeaturePlugin', 'BuiltInInitialFeatureState', 'ExplicitlyLoaded', '.uplugin', 'GameFrameworkComponentManager', 'AddReceiver', 'AddComponentRequest', 'AddExtensionHandler', 'NAME_GameActorReady',…

  skills/ue-game-features/SKILL.md on GitHub (opens in a new tab)

• ue-gameplay-abilities

  Use when implementing or debugging the Gameplay Ability System in C++ — abilities, effects, attributes, cues and the AbilitySystemComponent. Also use when the user mentions 'GAS', 'UGameplayAbility', 'ActivateAbility', 'CommitAbility', 'UGameplayEffect', 'UAttributeSet', 'FGameplayAttributeData', 'AbilitySystemComponent', 'InitAbilityActorInfo', 'GiveAbility', 'TryActivateAbility', 'ability task'…

  skills/ue-gameplay-abilities/SKILL.md on GitHub (opens in a new tab)

• ue-gameplay-cameras

  Use when building or fixing Unreal Engine cameras — spring-arm third-person rigs, first-person cameras, view-target blends, camera shakes, camera modifiers, cine cameras, or the Gameplay Camera System plugin. Also use when the user mentions 'APlayerCameraManager', 'USpringArmComponent', 'TargetArmLength', 'bUsePawnControlRotation', 'SetViewTargetWithBlend', 'UpdateViewTarget', 'CalcCamera', 'UCam…

  skills/ue-gameplay-cameras/SKILL.md on GitHub (opens in a new tab)

• ue-gameplay-framework

  Use when writing or fixing Unreal Engine gameplay framework classes — GameMode, GameState, PlayerController, PlayerState, Pawn, Character, HUD, GameInstance — and the flows they own: player join, pawn spawning, match state, travel and non-GAS damage. Also use when the user mentions 'AGameModeBase', 'PostLogin', 'OnPostLogin', 'RestartPlayer', 'SpawnDefaultPawnFor', 'ChoosePlayerStart', 'match sta…

  skills/ue-gameplay-framework/SKILL.md on GitHub (opens in a new tab)

• ue-gameplay-tags-messaging

  Use when defining, querying or replicating Gameplay Tags, or wiring decoupled event messaging between gameplay systems in C++. Also use when the user mentions 'FGameplayTag', 'FGameplayTagContainer', 'FGameplayTagQuery', 'UE_DEFINE_GAMEPLAY_TAG', 'native gameplay tag', 'DefaultGameplayTags.ini', 'GameplayTagList', 'tag redirect', 'MatchesTag', 'HasTagExact', 'RequestGameplayTag', 'UGameplayTagsMa…

  skills/ue-gameplay-tags-messaging/SKILL.md on GitHub (opens in a new tab)

• ue-input-system

  Use when wiring player input in Unreal C++ with Enhanced Input — input actions, mapping contexts, triggers, modifiers, binding handlers and runtime key rebinding. Also use when the user mentions 'Enhanced Input', 'UInputAction', 'UInputMappingContext', 'AddMappingContext', 'BindAction', 'SetupPlayerInputComponent', 'ETriggerEvent', 'input trigger', 'input modifier', 'SwizzleAxis', 'dead zone', 'W…

  skills/ue-input-system/SKILL.md on GitHub (opens in a new tab)

• ue-mass-entity

  Use when writing or debugging Mass Entity ECS code in Unreal Engine C++ — processors, queries, fragments, tags, observers, traits, spawning and large-scale agent simulation. Also use when the user mentions 'MassEntity', 'UMassProcessor', 'FMassEntityQuery', 'ForEachEntityChunk', 'FMassEntityManager', 'FMassFragment', 'FMassTag', 'FTransformFragment', 'UMassObserverProcessor', 'ObservedTypes', 'De…

  skills/ue-mass-entity/SKILL.md on GitHub (opens in a new tab)

• ue-materials-rendering

  Use when writing C++ for materials or rendering — dynamic material instances, material parameter collections, render targets, scene capture, post process, decals, Nanite, Lumen, MegaLights, Substrate. Also use when the user mentions 'MID', 'CreateDynamicMaterialInstance', 'SetScalarParameterValue', 'UMaterialInstanceDynamic', 'material parameter collection', 'UTextureRenderTarget2D', 'DrawMateria…

  skills/ue-materials-rendering/SKILL.md on GitHub (opens in a new tab)

• ue-module-build-system

  Use when writing or fixing Build.cs, Target.cs, .uproject or .uplugin files, creating a module or plugin, or resolving an Unreal build error. Also use when the user mentions 'unresolved external symbol', 'LNK2019', 'cannot open include file', 'C1083', 'MODULENAME_API', 'PublicDependencyModuleNames', 'IWYU', 'PCHUsage', 'IMPLEMENT_MODULE', 'IMPLEMENT_PRIMARY_GAME_MODULE', 'LoadingPhase', 'circular…

  skills/ue-module-build-system/SKILL.md on GitHub (opens in a new tab)

• ue-mover

  Use when writing or debugging movement built on the Mover plugin: custom movement modes, layered moves, movement modifiers, instant effects, mode transitions, input production, or rollback networking for a Mover pawn. Also use when the user mentions 'Mover plugin', 'MoverComponent', 'CharacterMoverComponent', 'UBaseMovementMode', 'FLayeredMoveBase', 'FMoverSyncState', 'FMoverInputCmdContext', 'FP…

  skills/ue-mover/SKILL.md on GitHub (opens in a new tab)

• ue-networking-replication

  Use when writing multiplayer C++: replicating a property, choosing an RPC type, tuning relevancy or dormancy, registering replicated subobjects, or turning on push model or Iris. Also use when the user mentions 'replicate a variable', 'OnRep', 'DOREPLIFETIME', 'GetLifetimeReplicatedProps', 'Server RPC', 'NetMulticast', 'WithValidation', 'COND_OwnerOnly', 'HasAuthority', 'ENetRole', 'FFastArraySer…

  skills/ue-networking-replication/SKILL.md on GitHub (opens in a new tab)

• ue-niagara-effects

  Use when driving Niagara VFX from C++: spawning a system, overriding User parameters, binding data interfaces, sending gameplay data through Niagara Data Channels, pooling components or handling OnSystemFinished. Also use when the user mentions 'Niagara', 'particle system', 'VFX', 'UNiagaraComponent', 'UNiagaraFunctionLibrary', 'SpawnSystemAtLocation', 'SpawnSystemAttached', 'SetVariableFloat', '…

  skills/ue-niagara-effects/SKILL.md on GitHub (opens in a new tab)

• ue-physics-collision

  Use when setting up collision channels and profiles, running line/sweep/overlap queries, wiring hit and overlap events, or simulating rigid bodies in Unreal Engine C++. Also use when the user mentions 'collision channel', 'collision profile', 'LineTraceSingleByChannel', 'SweepSingleByChannel', 'OverlapMultiByObjectType', 'FHitResult', 'FCollisionQueryParams', 'FCollisionShape', 'OnComponentHit',…

  skills/ue-physics-collision/SKILL.md on GitHub (opens in a new tab)

• ue-procedural-generation

  Use when generating world content or geometry procedurally in Unreal Engine: PCG graphs, custom PCG nodes in C++, runtime mesh building, instancing and seeded noise. Also use when the user mentions 'PCG', 'UPCGComponent', 'UPCGSettings', 'IPCGElement', 'UPCGBasePointData', 'surface sampler', 'static mesh spawner', 'runtime generation', 'CreateMeshSection', 'UProceduralMeshComponent', 'UDynamicMes…

  skills/ue-procedural-generation/SKILL.md on GitHub (opens in a new tab)

• ue-project-context

  Use when creating, refreshing or repairing `.agents/ue-project-context.md`, the project document every other UE skill reads first. Also use when the user says 'project context', 'set up context', 'UE context', 'scan my project', 'onboard the agent to my project', 'update project context', 'configure project', 'what engine version is this project on', 'which plugins do we have enabled', or complai…

  skills/ue-project-context/SKILL.md on GitHub (opens in a new tab)

• ue-sequencer-cinematics

  Use when playing Level Sequences from C++, building cutscenes or in-game camera moments, binding actors to sequence tracks at runtime, wiring Sequencer event tracks, or rendering with Movie Render Graph. Also use when the user mentions 'Sequencer', 'LevelSequence', 'ALevelSequenceActor', 'ULevelSequencePlayer', 'CreateLevelSequencePlayer', 'cutscene', 'camera cut', 'event track', 'ULevelSequenceD…

  skills/ue-sequencer-cinematics/SKILL.md on GitHub (opens in a new tab)

• ue-serialization-savegames

  Use when implementing save/load, player progress persistence, slot management, or binary serialization in Unreal Engine C++. Also use when the user mentions 'save game', 'USaveGame', 'SaveGameToSlot', 'AsyncSaveGameToSlot', 'LoadGameFromSlot', 'DoesSaveGameExist', 'DeleteGameInSlot', 'ULocalPlayerSaveGame', 'UPROPERTY(SaveGame)', 'FArchive', 'FMemoryWriter', 'FCustomVersion', 'save versioning', '…

  skills/ue-serialization-savegames/SKILL.md on GitHub (opens in a new tab)

• ue-state-trees

  Use when writing or debugging State Tree logic in Unreal Engine C++ — tasks, conditions, evaluators, considerations, schemas, transitions, events or Mass behaviours. Also use when the user mentions 'StateTree', 'state tree', 'FStateTreeTaskBase', 'FStateTreeExecutionContext', 'GetInstanceDataType', 'FInstanceDataType', 'UStateTreeComponent', 'UStateTreeAIComponent', 'FStateTreeReference', 'SendSt…

  skills/ue-state-trees/SKILL.md on GitHub (opens in a new tab)

• ue-testing-debugging

  Use when writing or running Unreal Engine tests, adding logging, or profiling a build. Also use when the user mentions 'UE_LOG', 'log category', 'DEFINE_LOG_CATEGORY', 'UE_LOGFMT', 'verbosity', 'check', 'ensure', 'ensureMsgf', 'verify', 'IMPLEMENT_SIMPLE_AUTOMATION_TEST', 'automation test', 'TEST_CLASS', 'CQTest', 'AFunctionalTest', 'latent command', 'Unreal Insights', 'TRACE_CPUPROFILER_EVENT_SC…

  skills/ue-testing-debugging/SKILL.md on GitHub (opens in a new tab)

• ue-ui-umg-slate

  Use when writing or fixing Unreal Engine UI in C++ — UMG user widgets, Slate widgets, Common UI screens, or MVVM view models. Also use when the user mentions 'UUserWidget', 'NativeConstruct', 'BindWidget', 'CreateWidget', 'AddToViewport', 'ESlateVisibility', 'OnClicked', 'UListView', 'widget animation', 'SNew', 'SLATE_BEGIN_ARGS', 'SCompoundWidget', 'UCommonActivatableWidget', 'activatable widget…

  skills/ue-ui-umg-slate/SKILL.md on GitHub (opens in a new tab)

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